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        <h1 class="title">DIV 自适应宽度</h1>
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                <time datetime="2019-08-16T06:59:00.000Z" itemprop="datePublished" class="page-time">
  2019-08-16
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<article id="post-DIV自适应宽度" class="post-article article-type-post fade" itemprop="blogPost">

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        <h1 class="post-card-title">DIV 自适应宽度</h1>
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            <time class="post-time" title="2019-08-16 14:59:00" datetime="2019-08-16T06:59:00.000Z" itemprop="datePublished">2019-08-16</time>

            
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            <blockquote>
<p>三栏布局：左右固定，中间自适应</p>
</blockquote>
<h3 id="float"><a href="#float" class="headerlink" title="float"></a>float</h3><ul>
<li><p>html</p>
<figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line"><span class="tag">&lt;<span class="name">div</span> <span class="attr">class</span>=<span class="string">"outer"</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">div</span> <span class="attr">class</span>=<span class="string">"left"</span>&gt;</span> 左 <span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">div</span> <span class="attr">class</span>=<span class="string">"right"</span>&gt;</span>右<span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">div</span> <span class="attr">class</span>=<span class="string">"center"</span>&gt;</span>中<span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br></pre></td></tr></table></figure>
</li>
<li><p>css</p>
<figure class="highlight css"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line"><span class="selector-class">.outer</span><span class="selector-class">.left</span> &#123;<span class="attribute">float</span>: left;&#125;</span><br><span class="line"><span class="selector-class">.outer</span><span class="selector-class">.right</span> &#123;<span class="attribute">float</span>: right;&#125;</span><br></pre></td></tr></table></figure>
<hr>
</li>
</ul>
<h3 id="position"><a href="#position" class="headerlink" title="position"></a>position</h3><ul>
<li><p>html</p>
<figure class="highlight js"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">&lt;div <span class="class"><span class="keyword">class</span></span>=<span class="string">"pos"</span>&gt;</span><br><span class="line">    &lt;div <span class="class"><span class="keyword">class</span></span>=<span class="string">"left"</span>&gt; 左 &lt;<span class="regexp">/div&gt;</span></span><br><span class="line"><span class="regexp">    &lt;div class="center"&gt;中&lt;/</span>div&gt;</span><br><span class="line">    &lt;div <span class="class"><span class="keyword">class</span></span>=<span class="string">"right"</span>&gt;右&lt;<span class="regexp">/div&gt;</span></span><br><span class="line"><span class="regexp">&lt;/</span>div&gt;</span><br></pre></td></tr></table></figure>
</li>
<li><p>css</p>
<figure class="highlight css"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line"><span class="selector-class">.pos</span> &#123;<span class="attribute">position</span>: relative;&#125;</span><br><span class="line"><span class="selector-class">.pos</span> <span class="selector-class">.left</span> &#123;<span class="attribute">position</span>: absolute;<span class="attribute">left</span>: <span class="number">0</span>; &#125;</span><br><span class="line"><span class="selector-tag">pos</span> <span class="selector-class">.right</span> &#123;<span class="attribute">position</span>: absolute; <span class="attribute">right</span>: <span class="number">0</span>;&#125;</span><br><span class="line"><span class="selector-class">.pos</span> <span class="selector-class">.center</span> &#123;<span class="attribute">position</span>: absolute;<span class="attribute">left</span>: <span class="number">80px</span>;<span class="attribute">right</span>: <span class="number">80px</span>;&#125;</span><br></pre></td></tr></table></figure>
</li>
</ul>
<hr>
<h3 id="flex"><a href="#flex" class="headerlink" title="flex"></a>flex</h3><ul>
<li><p>html</p>
<figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line"><span class="tag">&lt;<span class="name">div</span> <span class="attr">class</span>=<span class="string">"flex"</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">div</span> <span class="attr">class</span>=<span class="string">"left"</span>&gt;</span> 左 <span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">div</span> <span class="attr">class</span>=<span class="string">"center"</span>&gt;</span>中<span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">div</span> <span class="attr">class</span>=<span class="string">"right"</span>&gt;</span>右<span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br></pre></td></tr></table></figure>
</li>
<li><p>css</p>
<figure class="highlight css"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line"><span class="selector-class">.flex</span> &#123;<span class="attribute">display</span>: flex;&#125;</span><br><span class="line"><span class="selector-class">.flex</span> <span class="selector-class">.center</span> &#123;<span class="attribute">flex</span>: <span class="number">1</span>;&#125;</span><br></pre></td></tr></table></figure>
<hr>
</li>
</ul>
<h3 id="table"><a href="#table" class="headerlink" title="table"></a>table</h3><ul>
<li><p>html</p>
<figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line"><span class="tag">&lt;<span class="name">div</span> <span class="attr">class</span>=<span class="string">"table"</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">div</span> <span class="attr">class</span>=<span class="string">"left"</span>&gt;</span> 左 <span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">div</span> <span class="attr">class</span>=<span class="string">"center"</span>&gt;</span>中<span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">div</span> <span class="attr">class</span>=<span class="string">"right"</span>&gt;</span>右<span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br></pre></td></tr></table></figure>
</li>
<li><p>css</p>
<figure class="highlight css"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line"> <span class="selector-class">.table</span> &#123;<span class="attribute">width</span>: <span class="number">100%</span>;<span class="attribute">display</span>: table;&#125;</span><br><span class="line"><span class="selector-class">.table</span> <span class="selector-class">.center</span>,<span class="selector-class">.right</span>,<span class="selector-class">.left</span> &#123;<span class="attribute">display</span>: table-cell;&#125;</span><br></pre></td></tr></table></figure></li>
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